what is BUSINESS DELIGATE PATTERN,DAO,VO,DTO?
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Answer Posted / ravikiran(aptech mumbai)
Business Delegate:Is a design pattern used to hide the
remoteness of any component to the accessor
DAO:Is the data access object used to make the database
logic away fom the busines logic.By witing it in a seperate
method and calling in action
VO:Is the value object used in the development of enterprise
distributed applications to get and set the values
DTO:Is the data transfer object which will expose the
business methods to the jsps to call with out passing threw
the network barrier every time
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